Improvement in paper-bag machines



1 44Shecats--Sheet2. T. &1J. BIBBY, 8L J. 8L W. BARON. v

lmprovement -in Paper-Bag Machines. No. 131,841. Patented 0ct.1,1872.v

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11m/VMM@ f M l f 48h --Sh 4; T- 8L J. BIBBYQSDI. @LW"."B..\RONJv Belts Get I `Improvement in`Paper-Bag Machines. No. 131,84/1.. Patented 0ct.,1a .72.i

I THoMAs BIBBY,

' It is designed to` construct the bags by this `machine out of acontinuous tube of paper that has been previously constructed by any well- PATENT OFFICE.

JAMEs BIBBY, AND JoHNBAEoN, or BUENLE'Y, AND WIL- LiAM BARON, on EoonnALE, ENGLAND.`

" IMPROVEMENT IN PAPER-BAG MACHINES.

. Specicationforming part of Letters Patent No. 131,841, dated October 1, 1872.

` To all/whom it may-concern:

l I Be it known thatwe,THoMAs BIBBYJAMES BLBBY, and JOHN BARON, all of Burnley, in- I the countyof Lancaster, and WrLLrAM BARON,

of Rochdale, in the same county, Kingdom of GreatBritain andIreland, have invented certain, Improvements in Machinery or Apparatusto `be-Employed for Manufacturing Paper Bags, for which VLetters Patent of the Kingdom of Great Britain and Ireland, were granted to us A ugust 24,:1871, of which the following is a specification: I

rlhe invention is designed for the purpose of l manufacturing that description of paper bag used in stores, having a square formation at `the bottom; and consists in a novel arrangement of mechanism, the construction and action of which will be more readily understood in connectionwith the following description on referenceto the accompanying. drawing.

known paper-tube making machine. In the drawing hereunto attached, Fig. 1, Sheet 1, represents la longitudinal section of .the machine employed for manufacturing paper bags "out of a continuous paper tube 5 in `Sheet 2, Fig. 2 represents a general elevation of the machine, and. Fig. 3 represents a detached reverse elevation of that portion of the drivingapparatus giving the intermittent feed or traverse to the paper tube, sufficient with each movementfor the construction of one bag 5 Fig. `4, Sheet 3, represents a general plan view of themachine; and in Sheet 4, Figs. `51and 6 represent transverse sections of Fig. l; Fig. 7

represents a longitudinal section in elevation `of `the `box or block upon which the. bag is formed; Fig. 8 represents a detached front end of the box contracted 5 Figs. 9 and 10 represent, respectively, the end views of Figs.v 7 and 8; Fig. 11 represents a plan view of Vthe general arrangement of mechanism comprising the box or block, together with the ngers and wedges actuating the contracting and expanding portion of the front end of the box, the

dotted portion thereof showing the position `the Wedges andfingers assume when the box is in its contracted state; Figs. 12, 13, 14, and

15, respectively, represent diagrams illustrat-4 4the V-templets; and Fig. 18, Sheet 3, represents a view of the bag when completed and delivered from the machine.

In order that the operation of the machine may be clearly understood, we will go through the complete process ofform ation of one bag, assuming for this purpose that the machine with its various movements is in the position shown in Sheets 1, 2, and 3that is, atv the time of sev ering a bag of agive'n length from the tube. At this time the shears a a, (seen more clearly in Sheet 4, Fig.- 5,) actuated by the cam al through the medium of the levers a2 and slide a3, come into action, and in their process of severing contract the surfaces of the tube, as seen in the 'same ligure; while in this position the pasters b b, actuated by the cam b1, levers and connecting-rods b2, are raised from their paste-trough b3, so as to come into contact with portions ofthe overlap of the paper tube that subsequently form the surfaces of adhesion When closed in. During this operation the box or block upon and against which the bag is formed, together with its internal and external mechanism employed in the bags formation, may be thus described: While the overlap end of the tube was being severed and pasted, as before described, the block end of the box, constructed of movable bent surfaceplates c c, are in their contracted position, so as to allow of the free delivery of the tube when bein g sheared from the continuous length,

`and. also for the action of the pasters on the overlap. This contraction and expansion of the surface-block end of the box, the expansion of which into its full square or rectangu- -lar shape, takes place immediately after the pasting operation is complete, is effected by the lever-wedges c1 c1, which, when causing lthe surface-block ends to expand, are forced in between the center end plates thereof, as seen in Sheet 4, Figs. 9 and 10, the in-and-out motion of which is transmitted thereto by the cam c2, through the medium of the vertical swivel-rods c3 c3, and levers c4. The expansion of `these surface-plates gives a full square formation to the paper tube, in which state its overlap is now prepared to be acted on, so as to form the bottom of the bag. Immediately after the movable block-surface plates c c are fully distended, the cam d, through the medium of the lever dl and sliding bars d2, brings the bowl d3 outside of the paper tube into contact with the internal bowls d4. These bowls when acted upon so as to become depressed, as described, force out by means of the bell-crank lever d5 and rods d6, the two V-templets dl d? fromthe top and bottom surfaceplates of the box, as seen in Sheet 4, Fig. 12, the extent of their movement outward being equal to the overlap ofthe paper bag. During the time the V- templets remain in this extended position the righ t-hand side foldingrollers e e are caused to advance, as seen in Sheet, 4, Fig. 13, so as to fold in the right side of the overlap, and when receding the left-hand side folding-rollers j' f are likewise caused to go through the saine process and fold in the left side of the overlap, the advance and retiring action of which are obtained by the cams e1 and f1, Sheet 4, A Fig. 5, through the medium of the levers e2 and f2 and the connecting slidingbars e3 and f3. So soon as the two sides are folded in, and while the folding-rollers are being fully withdrawn by the action of their respective mechanism, hereinbefore described, the V-templets, by the continued action of their acting' mediums, are withdrawn so as to leave the surface at the end of the box clear, and the top and bottom Vshaped ends of paper standing out in the positions left by the templets. The under folding-rollers g g, at this time acted upon by the cam-levers and slides g g', now come into operation and fold in the bottom V-shaped overlaps of the bag containing the paste, as seen in Sheet 4, Fig. 14, the rolling action of which at the same time distributes the paste over such V-surface. When this process is completed, and as the folding-rollers g g are receding, the top folding-rollers h h are caused to advance through the medium of the cams, levers, and slides h', and fold in the top overlap over the under pasted surface, as seen in Sheet 4, Fig. 15, the action of which completes the folding formation of the bottom of the bag. The movable surface-plates c c of the bottom of the block or box, during the foregoing operation, are maintained in their extended position by reason ofthe wedges c c being fully inserted between thein; but immediately after the folding-in is completed, as described, the mechanism actuating the wedges releases the same and allows the springs i to contract the movable surface-plates, as seen Ain Sheet 4, Fig. 8, allowing thereby a freedom of action to the mechanism subsequently employed for completing and finally delivering the bag from the machine. During the foregoing operations the driving-shaft m transmits motion through the pinion k, carrier l, and connecting-rod j to the arm n, which regularly withdraws in its vibration sufficient tube from the supply-reel o,

-with the calendering-rollers.

which will allow a motion free from strain to the tubefeeding apparatus, the action of which now takes place, and which will bemore readily understood on reference to Figs. 7 and 11, Sheet 4. As before stated, immediately after the movable surface-plates of the box or block assume their contracted position the tube must be delivered and severed at a point equal to the length of one bag. This is accomplished as follows, (sec Sheet 2,1Fig. 6:) The bowl p on the rim-disk q, keyedto the drivin g-shaft mas it revolves comes into contact with one ofthe four arms of the` star-wheel r secured to the gear-wheel rV revolving on the stud s, thek aci tion of which moves such star-wheel one-quarter of' a revolution, in which position it is held by a detent, q. The motion being transmitted to the ruiter-gearing and vertical shafts t t gives motion to the feed-pulleys u, (or it will be evident that, in lieu of the star-wheel, cams or other equivalent giving an intermittent motion may be employed with a similar result.) The motion thus given causes the feed-pulleys to revolve and deliver from the end of the box, intermittently, a length of tube sufficient for the depth of one bag and overlap for the subsequent formation of the bottom portion of the next bag. Simultaneously with the severing of the bag from the tube the platform or table a upon which it is delivered lis raised into an inclined position by means of the tappet c and lever n. The tucker or bent creasing-lever w also comes into action at this time and tucks in or creases the bag so as to cause a part of its folded bottom portion to fall back and lie in a position on a level with the remaining portion of the bag. This tuckin'g action also impels the severed bag forward between the pressing-rollers The revolving of these rollers is obtained through themedium of the shaft y and bevel-gearing z. The bag when passing between these rollers becomes pressed ready for packing, but before leaving the machine itis received by the printing-rollers s1 and s2, which are caused to revolve in unison rEhe roller s1 is supplied with type or other equivalent representing subject-matter, and the bottom roller s2 with printers cloth. The position of the type upon the printing-roller or cylinder allows the thick or folded portion of the bag to get through first, after which its type, being previously inked by the rollers s3 from the inktrough s4, prints or impresses upon the iiat front surface of the bag any subject-matter desired, at the same time delivering the complete bag from the machine.

Having now described the nature of our invention, together with the method of carrying the same into practical effect, we wish it to be understood, in conclusion, that we do not wish l to confine ourselves to the precise details hereinbefore described so long as the general features and principle of the several actions composing the machine, as a whole, are retained; but- What we more particularly desire it to be understood that We claimas nevir in our arrangement of mechanism, isfl. The combination ofthe former, to which are hinged plates c c, the devices for operating'said plates and for passing a continuous tube of paper over the former7 and the sever-- ingand pastingdevicesspeciied, or their equivalents, for the purposev set forth.-

r 2. The combination of the sliding V-shaped plates d" and lateral reciprocating rolls e e, operating to fold the end of the tube between the plates, as set forth.

3. The combination of the plates d" operating as described, andthe reciprocating rolls e and f, g and h, as set forth.

4. The. combination7 with `the feed-rolls, of the disk q, bowl p, star-Wheel r, detent q', and intermediate gearing or their equivalents, as and for the purpose set forth.

5. The combination of the tucker fw, rolls a:

w, and table n hinged at one end, and oper?` ated by the devices describedor their equiv` alents, so as to coincide with the inclined side of the bag, as set forth.

6. The combination of devices for feeding acontinuous tube and a former over which the tube is passed, and which contracts during the movement of the paper, and Which, after the tube is severed, expands and forms Va platen upon Which the end of the tube may be folded, as specified.

In testimony whereof We have signed our names to this specification in the presence of tWo subscribing witnesses.

THOMAS BIBBY. JAMES BIBBY. JOHN BARON. Witnesses: WILLIAM BARON.

Tnoivms WRIGLEY, v Tnos. RICHMOND. 

